S

Fig. 11-7 Temperature-Entropy (T-s) Diagram of Steam Turbine Reheat Cycle.

extracted from the turbine. The proportion of steam extracted is just sufficient to cause the liquid leaving the feedwater heater to be saturated at state C. Since condensate is pumped to an intermediate pressure corresponding to state F, a second-stage feedwater pump is required to achieve boiler pressure.

steam turbine mechanical drive application.

Steam turbines can be connected to drive two pieces of equipment, such as an air compressor and a generator. The turbine drives one or both machines, depending on low-pressure steam load. Figure 11-13 shows a dual-drive steam turbine featuring a double-ended shaft.

Fig. 11-11 Three, Multi-Valve, Condensing Steam TurbineGenerator Sets. Source: Dresser Rand

Fig. 11-9 Regenerative Cycle T-s Diagram (Non-Superheat, Non-Reheat).

Fig. 11-11 Three, Multi-Valve, Condensing Steam TurbineGenerator Sets. Source: Dresser Rand

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